The oldest rocks and minerals on Earth's surface have been found in Canada and Australia and are from the
A. Cenozoic Era.
B. Mesozoic Era.
C. Precambrian Era.
D. Paleozoic Era.
Answer: C
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A small thunderstorm cloud with virga falling out of its base and blowing dust at the ground could warn of a severe hazard to an airplane because
a. this could be the first indication of a tornado. b. it is likely that hail will soon begin to fall. c. this could indicate an intense downdraft or microburst. d. the airplane could be struck by lightning. e. a hurricane is close by.
People who propose that wild species have an inherent right to exist generally believe that species have
A. economic value. B. genetic value. C. intrinsic value. D. utilitarian value. E. ecological value.
The Ferrel Cell is associated with the:
A) tropics. B) mid-latitudes. C) high-latitudes. D) poles.
An end moraine marks the final edge of a receding glacier just before the glacier melts away entirely.
Answer the following statement true (T) or false (F)